Blood transfusion apparatus with adjustable blood transfusion speed

Abstract

The invention relates to the technical field of medical instruments, and discloses a blood transfusion speed-adjustable blood transfusion apparatus, which comprises a blood transfusion tube, an adjuster is sleeved on the outer side of the blood transfusion tube, a pressing wheel is arranged on the adjuster, and a positioning shaft is arranged in the pressing wheel; and the auxiliary assembly is arranged on the adjuster and comprises an adjusting piece, the adjusting piece comprises a rotating column rotationally connected to one side of the adjuster, a winding wheel is fixed to the outer side of the rotating column, a first pull rope is fixed to the bottom of the winding wheel, and a connecting block is fixed to the end of the positioning shaft. The automatic blood transfusion device has the advantages that after blood transfusion reaches 15 minutes, the blood transfusion speed can be automatically increased through the auxiliary assembly, medical staff do not need to frequently check the blood transfusion time, then the workload of the medical staff can be reduced, the increased blood transfusion speed can be adjusted according to different blood products, and the automatic blood transfusion device can adapt to different types of blood products.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a blood transfusion set with adjustable blood transfusion speed. Background Art

[0002] A blood transfusion set is a medical device used to transport blood or blood products from a blood bag to a patient's body. It mainly consists of a blood transfusion tube, a puncture device, a drip speed regulator, etc. When transfusing blood to a patient, the principle of starting slowly and then gradually increasing the speed should be followed. The first 15 minutes of blood transfusion should be slower, which is suitable for most people's physical conditions. Therefore, it is preferably slower in the first 15 minutes, and then the blood transfusion speed is adjusted according to the type of blood product. During blood transfusion, medical staff need to frequently check the blood transfusion time and the patient's condition. Especially when taking care of multiple patients simultaneously, it will distract their attention and energy, increase the workload, and may affect the nursing quality of other patients. Moreover, relying on manual judgment of time may have errors. Especially in a busy situation, medical staff may misremember or misread the time, resulting in untimely or inaccurate adjustment of the blood transfusion speed, increasing the risk of adverse reactions in patients. Summary of the Invention

[0003] In view of the above problems existing in the existing blood transfusion set with adjustable blood transfusion speed, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that medical staff need to frequently check the blood transfusion time, which will increase the workload of medical staff.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A blood transfusion set with adjustable blood transfusion speed, which includes a blood transfusion tube, a regulator sleeved outside the blood transfusion tube, a pressure wheel arranged on the regulator, and a positioning shaft arranged inside the pressure wheel; An auxiliary component is arranged on the regulator and includes an adjusting member. The adjusting member includes a rotating column rotatably connected to one side of the regulator. A winding wheel is fixed outside the rotating column, a first pulling rope is fixed to the bottom of the winding wheel, and a connecting block is fixed to the end of the positioning shaft; The auxiliary component further includes a timing member. The timing member includes a mounting box fixed to one side of the regulator. A spring timer is arranged inside the mounting box. A rotating column is fixed to the spring timer. A rotating wheel is fixed outside the rotating column, and a second pulling rope is fixed to the rotating wheel.

[0006] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: the auxiliary component further includes a transmission member, the transmission member includes a pressing block fixed on the outer side of the second pulling rope, one side of the regulator is fixed with a threaded tube, a rotating rod is arranged on one side of the threaded tube, a rotating rod is sleeved outside the rotating column, one end of the rotating rod is fixed with a fixed shaft, the other end of the rotating rod is inserted with a stress block, and a threaded column is in threaded connection with the threaded tube.

[0007] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: the auxiliary component further includes a connecting member, the connecting member includes a fixed sleeve fixed on one side of the rotating rod, a clamping block is arranged in the fixed sleeve, a clamping groove is formed on the rotating column, and the clamping block is engaged with the clamping groove.

[0008] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: one side of the clamping block is fixed with a first spring, the other end of the first spring is fixed with the inner wall of the fixed sleeve, and a pull rod is fixed on one side of the clamping block.

[0009] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: the auxiliary component further includes a pressing member, the pressing member includes a movable block located inside the connecting block, a fixed rod is fixed on one side of the movable block, and an anti-slip spike is fixed on the other side.

[0010] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: a limiting post is inserted on the fixed rod, a second spring is fixed at the bottom end of the limiting post, a pushing post is fixed on one side of the regulator, and a limiting hole is formed on the connecting block.

[0011] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: a fixing plate is fixed on one side of the fixed rod, and a third spring is fixed on one side of the fixing plate.

[0012] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: the auxiliary component further includes a positioning member, the positioning member includes a support rod fixed on one side of the installation box, a top rod is fixed at the bottom of the support rod, a fourth spring is fixed at the bottom of the support rod, and the bottom end of the fourth spring is fixed with the rotating rod.

[0013] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: a positioning ring is fixed on one side of the installation box, and the positioning ring is located outside the second pulling rope.

[0014] As a preferred embodiment of the blood transfusion device with adjustable blood transfusion speed according to the present invention, wherein: a protective cover is fixed on one side of the installation box, and the protective cover is located outside the rotating wheel.

[0015] The beneficial effects of the present invention are as follows: After 15 minutes of reaching the preferred blood transfusion time, the blood transfusion speed can be automatically increased through the auxiliary component, so that there is no need for medical staff to frequently check the blood transfusion time, thereby reducing the workload of medical staff, and the increased blood transfusion speed can be adjusted according to different blood products, so as to adapt to different types of blood products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them: Figure 1 It is an overall view of a blood transfusion device with adjustable blood transfusion speed.

[0017] Figure 2 For the blood transfusion device with adjustable blood transfusion speed Figure 1 Partial enlarged structural view at A.

[0018] Figure 3 For the blood transfusion device with adjustable blood transfusion speed Figure 1 Partial enlarged structural view at B.

[0019] Figure 4 It is a sectional structural view of the extrusion part of the blood transfusion device with adjustable blood transfusion speed.

[0020] Figure 5 It is a structural view of the timing part and the adjusting part of the blood transfusion device with adjustable blood transfusion speed.

[0021] Figure 6 For the blood transfusion device with adjustable blood transfusion speed Figure 5 Partial enlarged structural view at C.

[0022] Figure 7 It is a sectional structural view of the transmission part of the blood transfusion device with adjustable blood transfusion speed.

[0023] Figure 8 For the blood transfusion device with adjustable blood transfusion speed Figure 7 Partial enlarged structural view at D.

[0024] Figure 9 It is an internal structural view of the installation box of the blood transfusion device with adjustable blood transfusion speed.

[0025] Figure 10 It is a structural view of the regulator of the blood transfusion device with adjustable blood transfusion speed.

[0026] In the figure: 101, blood transfusion tube; 102, regulator; 103, pressing wheel; 104, positioning shaft; 200, auxiliary component; 201, adjusting part; 2011, rotating column; 2012, winding wheel; 2013, first pulling rope; 2014, connecting block; 202, timing part; 2021, mounting box; 2022, spring timer; 2023, rotating column; 2024, rotating wheel; 2025, second pulling rope; 203, transmission part; 2031, extrusion block; 2036, stress block; 2032, threaded tube; 2033, rotating rod; 2034, rotating bar; 2035, fixed shaft; 2037, threaded column; 204, connecting part; 2041, fixed sleeve; 2042, clamping block; 2011-1, clamping groove; 2043, first spring; 2044, pull rod; 205, extrusion part; 2051, movable block; 2052, fixed rod; 2053, anti-slip protrusion; 2054, limiting column; 2055, second spring; 2059, pushing column; 2056, limiting hole; 2057, fixing plate; 2058, third spring; 206, positioning part; 2061, support rod; 2062, ejector rod; 2063, fourth spring; 2025-1, positioning ring; 2024-1, protective cover. Detailed implementation mode

[0027] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation mode of the present invention will be given in conjunction with the drawings of the specification.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0029] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation mode of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0030] Embodiment 1 Refer to Figure 1 、 Figure 5 and Figure 9, which is the first embodiment of the present invention. This embodiment provides a blood transfusion device with adjustable blood transfusion speed. The blood transfusion device with adjustable blood transfusion speed includes a blood transfusion tube 101. Components such as a puncture device and a venous puncture needle are provided on the blood transfusion tube 101. A regulator 102 is sleeved outside the blood transfusion tube 101. One side of the regulator 102 is in an open shape. A side plate 102-1 is provided inside the opening. Through holes 102-3 are opened on both the side plate 102-1 and the regulator 102. A plug rod 102-2 is inserted into the through hole 102-3. When the side plate 102-1 fits with the regulator 102, the plug rod 102-2 is inserted into the through hole 102-3, and the side plate 102-1 can be fixed. At this time, the regulator 102 can block and limit the blood transfusion tube.

[0031] Since the blood transfusion tube is disposable, after blood transfusion, the regulator 102 can be disassembled and installed on another group of blood transfusion tubes, which can greatly save the use cost.

[0032] A pressure wheel 103 is provided on the regulator 102. The pressure wheel 103 is used to adjust the blood transfusion speed. When the pressure wheel 103 moves upward, the blood transfusion speed can be increased. When it moves downward, the blood transfusion speed will be reduced. The above are all prior arts and will not be elaborated in this solution. And those skilled in the art can clearly understand the working principle.

[0033] A positioning shaft 104 is arranged inside the pressure wheel 103. The positioning shaft 104 is rotatably connected to the inside of the pressure wheel 103 through a bearing. When the pressure wheel 103 rotates, it will not affect the positioning shaft 104. And when the positioning shaft 104 moves up and down, it can drive the pressure wheel 103 to move up and down. A sliding groove is opened on the regulator 102, and the positioning shaft 104 is slidably connected to the sliding groove.

[0034] An auxiliary component 200 is arranged on the regulator 102 and includes an adjusting member 201. The adjusting member 201 includes a rotating column 2011 rotatably connected to one side of the regulator 102. The rotating column 2011 is rotatably connected to the regulator 102 through a bearing. A winding wheel 2012 is fixed on the outside of the rotating column 2011. A first pulling rope 2013 is fixed at the bottom of the winding wheel 2012. A connecting block 2014 is fixed at the end of the positioning shaft 104, and the bottom end of the first pulling rope 2013 penetrates below the connecting block 2014.

[0035] When the connecting block 2014 is connected to the first pulling rope 2013, when the winding wheel 2012 rotates, it will wind up the first pulling rope 2013. In this way, the connecting block 2014 and the positioning shaft 104 can be driven to move upward through the first pulling rope 2013, and the pressure wheel 103 can be driven to move upward through the positioning shaft 104. When the pressure wheel 103 moves upward, the blood transfusion speed can be increased.

[0036] A magnet is fixed to the bottom end of the first drawstring 2013, and an iron block is fixed to one side of the adjuster 102. When the first drawstring 2013 is not connected to the connection block 2014, the magnet will be attracted to the iron block, and the first drawstring 2013 is positioned through the cooperation of the two, thereby avoiding the situation that the first drawstring 2013 is wound during the carrying process.

[0037] The auxiliary component 200 further includes a timing member 202. The timing member 202 includes a mounting box 2021 fixed to one side of the adjuster 102. A spring timer 2022 is arranged in the mounting box 2021. The mounting box 2021 is used to install and fix the spring timer 2022 to prevent it from falling. The mounting box 2021 is made of a transparent material, and the scale on the spring timer 2022 can be seen.

[0038] The spring timer 2022 is a timing device that uses a spring as a power source to drive the operation of the timing mechanism. The spring is a spiral spring piece. When it is wound up, it stores elastic potential energy. As the spring slowly unwinds, the elastic potential energy is converted into mechanical energy. Through a series of gear transmission devices, the pointer or other display components are driven to rotate, thereby realizing the timing function. The required time can be timed by rotating the spring timer 2022. This is the prior art, and this solution will not be elaborated much, and those skilled in the art can clearly understand the working principle.

[0039] The spring timer 2022 has a rotating part for rotating the spring timer 2022 to tighten it. A scale bar (not shown in the figure) is arranged on the spring timer 2022, and the time of the spring timer 2022 can be observed through the scale bar. A rotating column 2023 is fixed to the spring timer 2022. The rotating column 2023 is fixed to the rotating part of the spring timer 2022. One end of the rotating column 2023 penetrates to the outside of the mounting box 2021 and is movably connected to the mounting box 2021. A rotating wheel 2024 is fixed to the outside of the rotating column 2023. A second drawstring 2025 is fixed to the rotating wheel 2024, and a pull ring is fixed to the bottom end of the second drawstring 2025 for easy pulling.

[0040] When the second drawstring 2025 is pulled downward, it will drive the rotating wheel 2024 and the rotating column 2023 to rotate. At this time, the rotating column 2023 will tighten and charge the spring timer 2022. After releasing the second drawstring 2025, the spring timer 2022 can drive the rotating column 2023 and the rotating wheel 2024 to rotate in the reverse direction, and the rotating wheel 2024 will wind up the second drawstring 2025.

[0041] The auxiliary component 200 further includes a transmission member 203. The transmission member 203 includes a pressing block 2031 fixed to the outer side of the second pulling rope 2025. The number of the pressing blocks 2031 is multiple. The uppermost pressing block 2031 is fixed to the outer side of the second pulling rope 2025 and cannot move. When the spring timer 2022 drives the rotating wheel 2024 to wind up the second pulling rope 2025, the second pulling rope 2025 will drive the pressing block 2031 to move upward. When the uppermost pressing block 2031 contacts the force-receiving block 2036, 15 minutes of the preferred time has passed at this time.

[0042] One side of the regulator 102 is fixed with a threaded tube 2032. The number of the threaded tubes 2032 is multiple, and they are linearly fixed to one side of the regulator 102. One side of the threaded tube 2032 is provided with a rotating rod 2033. A rotating rod 2034 is sleeved outside the rotating column 2011. A positioning groove is formed on the rotating rod 2034. One end of the rotating rod 2033 is fixed with a fixed shaft 2035. The fixed shaft 2035 slides in the positioning groove, and the rotating rod 2033 is connected to the rotating rod 2034 through the cooperation of the two.

[0043] The other end of the rotating rod 2033 is inserted with a force-receiving block 2036. One side of the force-receiving block 2036 is fixed with a fifth spring, and the fifth spring is used to apply a thrust to the force-receiving block 2036. The top of the force-receiving block 2036 is inclined and is movably connected inside the rotating rod 2033. A threaded column 2037 is threadedly connected inside the threaded tube 2032. Positioning holes are formed on the rotating rod 2033, and the number of the positioning holes corresponds to that of the threaded tubes 2032. One end of the threaded column 2037 penetrates through the positioning hole and is threadedly connected to the threaded tube 2032. The rotating rod 2033 is positioned by the threaded column 2037, so that when the rotating rod 2033 rotates, it can rotate around the threaded column 2037 as the center.

[0044] When the blood transfusion tube 101 starts blood transfusion and it is necessary to increase the blood transfusion speed after 15 minutes of the preferred time, at this time, the medical staff pulls the second pulling rope 2025 downward and completely unwinds the second pulling rope 2025 by the rotating wheel 2024. The second pulling rope 2025 will drive the rotating wheel 2024 and the rotating column 2023 to rotate. At this time, the rotating column 2023 will tighten and charge the spring timer 2022.

[0045] When the second drawstring 2025 moves downward, it will drive the extrusion block 2031 to move downward. When the extrusion block 2031 moves downward, it will contact the top inclined surface of the force-receiving block 2036 and push the force-receiving block 2036 to move into the rotating rod 2033. At this time, the rotating rod 2033 will not rotate. When the spring timer 2022 drives the rotating column 2023 and the rotating wheel 2024 to rotate in the reverse direction and the rotating wheel 2024 winds up the second drawstring 2025, after 15 minutes, the extrusion block 2031 will contact the force-receiving block 2036 and push the force-receiving block 2036 and the end of the rotating rod 2033 to move upward. At this time, the rotating rod 2033 rotates around the threaded column 2037 as the center, and the other end drives the rotating rod 2034 to rotate through the cooperation of the fixed shaft 2035 and the positioning groove. In this way, the rotating rod 2034 can drive the rotating column 2011 and the winding wheel 2012 to rotate, so that the winding wheel 2012 winds up the first drawstring 2013 and drives the pressing wheel 103 to move upward, thereby increasing the blood transfusion speed.

[0046] Since different types of blood products require different increased blood transfusion speeds. For example, the survival time of platelets is relatively short and they need to be quickly transfused into the patient's body to play a role. Therefore, when increasing the blood transfusion speed after 15 minutes, it is necessary to increase it to a relatively fast speed. Since the rotating rod 2033 rotates around the threaded column 2037 as the center, when the threaded column 2037 is located at the center position of the rotating rod 2033, the rotation angles at both ends of the rotating rod 2033 are the same. In this state, when increasing the blood transfusion speed after 15 minutes, the increased speed is relatively small. This state is applicable to whole blood.

[0047] If a relatively fast blood transfusion speed needs to be increased, move the position of the threaded column 2037 and move the threaded column 2037 in the direction close to the force-receiving block 2036. At this time, when the force-receiving block 2036 drives the end of the rotating rod 2033 to move upward by the same angle, the other end of the rotating rod 2033 will drive the rotating rod 2034 to rotate by a larger angle. Furthermore, the rotation angle of the winding wheel 2012 can be increased, and a longer length of the first drawstring 2013 can be wound up. In this way, the upward movement stroke of the pressing wheel 103 can be increased, and the blood transfusion speed can be adjusted to a relatively fast speed, so that the blood product with a short survival time such as platelets can be quickly transfused into the patient's body. Through the arrangement of multiple threaded tubes 2032, the threaded column 2037 can be positioned after being moved to different positions.

[0048] A stopper is rotatably connected to the outside of the threaded column 2037 through a bearing. One side of the stopper contacts the rotating rod 2033 to limit the rotating rod 2033 and prevent the rotating rod 2033 from detaching from the outside of the threaded column 2037 when rotating.

[0049] Embodiment 2 Refer to Figures 2 - 9, which is the second embodiment of the present invention and is based on the previous embodiment.

[0050] Specifically, the auxiliary component 200 further includes a connecting member 204. The connecting member 204 includes a fixing sleeve 2041 fixed to one side of the rotating rod 2034. A clamping block 2042 is arranged inside the fixing sleeve 2041. One side of the clamping block 2042 is inclined. A clamping groove 2011-1 is formed on the rotating column 2011. The number of the clamping grooves 2011-1 is multiple and they are evenly distributed in a ring on the outer side of the rotating column 2011. The clamping block 2042 is engaged with the clamping groove 2011-1. Through the cooperation of the two, the rotating rod 2034 is connected to the rotating column 2011, so that when the rotating rod 2034 rotates downward, it can drive the rotating column 2011 to rotate, and then the winding wheel 2012 can wind the first pulling rope 2013. When the rotating rod 2034 rotates upward to reset, it will not drive the rotating column 2011 to rotate, thus avoiding the situation that the winding wheel 2012 unwinds the first pulling rope 2013.

[0051] Specifically, a first spring 2043 is fixed to one side of the clamping block 2042. The other end of the first spring 2043 is fixed to the inner wall of the fixing sleeve 2041. The first spring 2043 is used to apply a thrust to the clamping block 2042 to make it more firmly engaged with the clamping groove 2011-1. A pull rod 2044 is fixed to one side of the clamping block 2042. When the blood transfusion is completed and the first pulling rope 2013 needs to be unwound, the clamping block 2042 can be driven to separate from the clamping groove 2011-1 through the pull rod 2044, so that the rotating rod 2034 can be separated from the rotating column 2011. At this time, the first pulling rope 2013 can be pulled downward.

[0052] Specifically, the auxiliary component 200 further includes an extrusion member 205. The extrusion member 205 includes a movable block 2051 located inside the connecting block 2014. An activity groove is formed in the connecting block 2014. The movable block 2051 is located in the activity groove. The movable block 2051 is semicircular. A fixing rod 2052 is fixed to one side of the movable block 2051, and an anti-slip thorn 2053 is fixed to the other side. One end of the fixing rod 2052 penetrates to the outside of the connecting block 2014 and is movably connected to the connecting block 2014.

[0053] When the connecting block 2014 needs to be connected to the first pulling rope 2013, the fixing rod 2052 is pushed to drive the movable block 2051 to move, so that the movable block 2051 drives the anti-slip thorn 2053 to extrude the first pulling rope 2013. At this time, the first pulling rope 2013 can be connected to the connecting block 2014. When the first pulling rope 2013 moves upward, it can drive the connecting block 2014 to move upward.

[0054] Specifically, a limit post 2054 is inserted into the fixed rod 2052. One side of the top end of the limit post 2054 is inclined. A second spring 2055 is fixed to the bottom end of the limit post 2054. A push post 2059 is fixed to one side of the regulator 102. A limit hole 2056 is formed in the connecting block 2014.

[0055] When the fixed rod 2052 moves, the inclined surface of the limit post 2054 will move downward under the reverse thrust of the connecting block 2014. When the anti-slip spike 2053 contacts the first pull rope 2013, the limit post 2054 will coincide with the limit hole 2056. At this time, the second spring 2055 pushes the limit post 2054 upward to engage it with the limit hole 2056. By the cooperation of the two, the fixed rod 2052 can be locked, so that the anti-slip spike 2053 can always squeeze the first pull rope 2013.

[0056] The push post 2059 is fixed to the regulator 102 through a connecting rod. The first pull rope 2013 is movably connected inside the connecting rod. The bottom end of the push post 2059 is coaxial with the limit hole 2056. As the connecting block 2014 moves upward, when the limit hole 2056 approaches the push post 2059, when the connecting block 2014 moves upward by a specified height and the blood transfusion speed is at the maximum state, the push post 2059 will enter the limit hole 2056 and push the limit post 2054 to separate from the limit hole 2056, so that the anti-slip spike 2053 can be separated from the first pull rope 2013.

[0057] Embodiment 3 Refer to Figures 1 - 9 , which is the third embodiment of the present invention. This embodiment is based on the first two embodiments.

[0058] Specifically, a fixing plate 2057 is fixed to one side of the fixed rod 2052. A third spring 2058 is fixed to one side of the fixing plate 2057. When the limit post 2054 is separated from the limit hole 2056, a thrust can be applied to the fixing plate 2057 through the third spring 2058, and the fixed rod 2052 and the movable block 2051 can be driven to move through the fixing plate 2057, so that the anti-slip spike 2053 can be separated from the first pull rope 2013.

[0059] Specifically, the auxiliary component 200 further includes a positioning member 206. The positioning member 206 includes a support rod 2061 fixed to one side of the installation box 2021. A top rod 2062 is fixed to the bottom of the support rod 2061. The bottom end of the top rod 2062 contacts the rotating rod 2033 to limit the rotating rod 2033, so that one end of the rotating rod 2033 connected to the rotating rod 2034 will not rotate upward.

[0060] A fourth spring 2063 is fixed to the bottom of the support rod 2061. The bottom end of the fourth spring 2063 is fixed to the rotating rod 2033. When the end of the rotating rod 2033 connected to the rotating rod 2034 moves downward and the pressing block 2031 is separated from the force receiving block 2036, the rotating rod 2033 can be pulled upward to rotate and reset by the fourth spring 2063 at this time.

[0061] Specifically, a positioning ring 2025-1 is fixed to one side of the installation box 2021. The inner diameter of the positioning ring 2025-1 is the same as the diameter of the pressing block 2031. The pressing block 2031 is positioned by the positioning ring 2025-1. When the pressing block 2031 contacts the force receiving block 2036, it can ensure that the pressing block 2031 pushes the force receiving block 2036 to move upward. The positioning ring 2025-1 is located outside the second pull rope 2025.

[0062] Specifically, a protective cover 2024-1 is fixed to one side of the installation box 2021. The protective cover 2024-1 is located outside the rotating wheel 2024. The protective cover 2024-1 is used to shield and protect the rotating wheel 2024. An opening is provided at the bottom of the protective cover 2024-1, so that the second pull rope 2025 and the pressing block 2031 can enter or exit the protective cover 2024-1.

[0063] When in use, when the blood transfusion tube 101 starts blood transfusion and the blood transfusion speed needs to be increased 15 minutes after the preferred appropriate time, the fixed rod 2052 is pushed to drive the movable block 2051 to move, so that the movable block 2051 drives the anti-slip spikes 2053 to squeeze the first pull rope 2013. At this time, the first pull rope 2013 can be connected to the connecting block 2014, and then the second pull rope 2025 is pulled downward to completely unwind the second pull rope 2025 by the rotating wheel 2024. The second pull rope 2025 will drive the rotating wheel 2024 and the rotating column 2023 to rotate. At this time, the rotating column 2023 will tighten and charge the spring timer 2022.

[0064] When the second pull rope 2025 moves downward, it will drive the extrusion block 2031 to move downward. When the extrusion block 2031 moves downward, it will contact the top inclined surface of the force-receiving block 2036 and push the force-receiving block 2036 to move into the rotating rod 2033. At this time, the rotating rod 2033 will not rotate. When the spring timer 2022 drives the rotating column 2023 and the rotating wheel 2024 to rotate in the reverse direction and the rotating wheel 2024 winds up the second pull rope 2025, after 15 minutes, the extrusion block 2031 will contact the force-receiving block 2036 and push the force-receiving block 2036 and the end of the rotating rod 2033 to move upward. At this time, the rotating rod 2033 rotates around the threaded column 2037, and the other end drives the rotating rod 2034 to rotate through the cooperation of the fixed shaft 2035 and the positioning groove. In this way, the rotating rod 2034 can drive the rotating column 2011 and the winding wheel 2012 to rotate, so that the winding wheel 2012 winds up the first pull rope 2013 and drives the pressing wheel 103 to move upward, thereby increasing the blood transfusion speed. Furthermore, it is not necessary for medical staff to frequently check the blood transfusion time, which can reduce the work burden of medical staff.

[0065] Embodiment 4 Refer to Figure 5 , which is the fourth embodiment of the present invention, and this embodiment is based on the first three embodiments.

[0066] Except that the uppermost extrusion block 2031 is fixed to the second pull rope 2025, the other extrusion blocks 2031 are all movably connected to the outside of the second pull rope 2025. However, the connection between the two is relatively firm, and when contacting the force-receiving block 2036, it will not move due to the reverse thrust of the force-receiving block 2036. A scale bar (not shown in the figure) is provided on the outside of the second pull rope 2025, and different scale bars represent the time of contact with the force-receiving block 2036.

[0067] During the blood transfusion process, according to the different physical conditions of the patient, when increasing the blood transfusion speed, it can be increased in multiple times, or only increased once. If it can only be increased once, then all the movable extrusion blocks 2031 are moved to the bottom end of the second pull rope 2025, so that during the upward movement of the second pull rope 2025, only the uppermost extrusion block 2031 will contact the force-receiving block 2036, and when the lower extrusion block 2031 contacts the force-receiving block 2036, the blood transfusion work has already been completed.

[0068] Under the observation of medical staff, when it is considered that the patient can accept multiple increases in blood transfusion speed, the extrusion block 2031 can be moved upward at this time and moved to the position of the specified scale bar according to the time required to increase the blood transfusion speed. During the subsequent blood transfusion process, when the blood transfusion speed is increased after 15 minutes, the blood transfusion speed can be increased again through the lower moved extrusion block 2031, so as to be applicable to the physical conditions of different patients.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A blood transfusion device with adjustable blood transfusion speed, characterized in that: include, A blood transfusion tube (101), wherein a regulator (102) is sleeved on the outside of the blood transfusion tube (101), a pressure wheel (103) is arranged on the regulator (102), and a positioning shaft (104) is arranged inside the pressure wheel (103); An auxiliary component (200) is arranged on the regulator (102), comprising an adjusting member (201), wherein the adjusting member (201) comprises a rotating column (2011) rotatably connected to one side of the regulator (102), a winding wheel (212) is fixed to the outside of the rotating column (2011), a first pull rope (2013) is fixed to the bottom of the winding wheel (2012), and a connecting block (2014) is fixed to the end of the positioning shaft (104); The auxiliary component (200) further comprises a timing component (202), wherein the timing component (202) comprises a mounting box (2021) fixed to one side of the regulator (102), wherein a spring timer (2022) is arranged in the mounting box (2021), a rotating column (2023) is fixed to the spring timer (2022), a rotating wheel (2024) is fixed to the outside of the rotating column (2023), and a second pull rope (2025) is fixed to the rotating wheel (2024).

2. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 1, characterized in that: The auxiliary component (200) further comprises a transmission member (203), wherein the transmission member (203) comprises an extrusion block (2031) fixed to the outside of the second pull rope (2025); a threaded tube (2032) is fixed to one side of the regulator (102); a rotating rod (2033) is arranged on one side of the threaded tube (2032); a rotating rod (2034) is sleeved on the outside of the rotating column (2011); a fixed shaft (2035) is fixed to one end of the rotating rod (2033); a force bearing block (2036) is inserted into the other end of the rotating rod (2033); and a threaded column (2037) is internally threadedly connected to the threaded tube (2032).

3. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 2, characterized in that: The auxiliary component (200) further comprises a connecting member (204), wherein the connecting member (204) comprises a fixing sleeve (2041) fixed to one side of the rotating rod (2034), a clamping block (2042) is arranged in the fixing sleeve (2041), a clamping slot (2011-1) is provided on the rotating column (2011), and the clamping block (2042) is engaged with the clamping slot (2011-1).

4. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 3, characterized in that: A first spring (2043) is fixed to one side of the clamping block (2042); the other end of the first spring (2043) is fixed to the inner wall of the fixing sleeve (2041); and a pull rod (2044) is fixed to one side of the clamping block (2042).

5. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 3 or 4, characterized in that: The auxiliary component (200) further comprises an extrusion piece (205), wherein the extrusion piece (205) comprises a movable block (2051) located inside the connection block (2014), wherein a fixing rod (2052) is fixed on one side of the movable block (2051) and an anti-slip spur (2053) is fixed on the other side.

6. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 5, characterized in that: A limiting column (2054) is inserted into the fixing rod (2052), a second spring (2055) is fixed to the bottom end of the limiting column (2054), a push column (2059) is fixed to one side of the regulator (102), and a limiting hole (2056) is provided on the connecting block (2014).

7. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 6, characterized in that: A fixing plate (2057) is fixed to one side of the fixing rod (2052), and a third spring (2058) is fixed to one side of the fixing plate (2057).

8. The blood transfusion device with adjustable blood transfusion speed according to claim 6 or 7, characterized in that: The auxiliary component (200) further comprises a positioning member (206), wherein the positioning member (206) comprises a support rod (2061) fixed to one side of the installation box (2021), a top rod (2062) being fixed to the bottom of the support rod (2061), a fourth spring (2063) being fixed to the bottom of the support rod (2061), and a bottom end of the fourth spring (2063) being fixed to the rotating rod (2033).

9. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 8, characterized in that: A positioning ring (2025-1) is fixed to one side of the installation box (2021), and the positioning ring (2025-1) is located outside the second pull rope (2025).

10. The blood transfusion device with adjustable blood transfusion speed as claimed in claim 9, characterized in that: A protective cover (24-1) is fixed to one side of the installation box (2021), and the protective cover (2024-1) is located outside the rotating wheel (2024).

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